Kruckeberg's Holly Fern, Kruckeberg's Holly-fern, Kruckeberg's Sword Fern
Polystichum kruckebergii
Leaflet of Kruckeberg's holly fern as seen near Hellroaring Overlook, Bird Creek Meadows, Mount Adams..........July 20, 2015.
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Kruckeberg's sword fern as observed on the south rim of Hellroaring Canyon, Bird Creek Meadows, Yakama Nation lands, Mount Adams......July 20, 2015.
Paul Slichter